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All AC voltages and currents are expressed as rms values, unless otherwise specified. So 120 V AC is an rms value.

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Q: Is utility voltage ie 110 VAC given as a RMS value or as a Peak value?
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What is the peak-to-peak voltage in a circuit with an rms voltage of 120VAC?

ANSWER: The peak to peak voltage can be found by multiplying 120 v AC x 2.82= 339.41


What is difference between amplitude and peak value?

It is the highest value of the amplitude, called the peak value. Scroll down to related links and look at "RMS voltage, peak voltage and peak-to-peak voltage". Look at the figure in the middle below the headline "RMS voltage, peak voltage and peak-to-peak voltage".


Utility voltage is 115 volts at a frequency of 60 Hz what is the peak to peak?

A: Take 115 volts and multiply by 2.82. The frequency does not matter but he voltage does


How you can prove the Peak voltage?

Use an oscilloscope. That shows the voltage waveform and you can read the peak value.


What is the peak value of a household appliance that uses a 230 VAC source?

Peak value is 1.414 times the RMS voltage. On a 240 volt circuit the peak voltage is 240 x 1.414 = 339.36 volts. The peak to peak value is twice this.


How does the peak value of an alternating voltage compare to its quoted value?

The quoted value is usually RMS value, i.e it is lesser than the peak value of the voltage, therefore the peak value is sqrt(2) times the quoted value. (it is a sine wave)


What is peak to peak voltage?

Conversions of RMS voltage, peak voltage and peak-to-peak voltage. That are the used voltages. The expression "average" voltage is used for RMS voltage.Scroll down to related links and seach for "RMS voltage, peak voltage and peak-to-peak voltage".Answer'Average' is not the same as 'root mean square'. As the average value of a sinusoidal voltage is zero, you cannot convert it to a peak-to-peak value.


A technician uses an oscilloscope to measure the peak value of an ac wave he tells you that the voltage has a peak value of 100v what is the rms value of the voltage?

100v divided by 1.41


Volts peak is equals to dc volts?

"Voltage peak" is generally used to denote the maximum(amplitude) of AC voltage supply. It can not be approximated as dc value. The closest approximation one can make for dc value of a ac supply is the RMS(root mean square) value of the voltage. So that the ohmic loss caused by the given AC voltage supply is equivalent to that caused by a dc supply having value equal to the RMS of this AC supply (for given impedance & time).


Why is the peak amplitude of voltage load lower than the amplitude of voltage transformer?

Unless otherwise stated, the value of an a.c. current or voltage is expressed in r.m.s. (root mean square) values which, for a sinusoidal waveform, is 0.707 times their peak value. The output of a voltage (or potential) transformer is no different, its measured voltage will be its r.m.s value which is lower than its peak value.


How to calculate the peak-to-peak value of a signal?

A: AC or our line voltage is sinusoidal in nature it goes up to a positive peak returns to zero and proceed to the negative peak. 120V AC is actually swinging from peak to peak. It is 120 volts but the peak is the 120 v times 1.41 or 169.2 volts and since it also go negative then the peak to peak 120 volts times 2.82 or 338.40 volts or twice the peak voltage


How do you convert peak voltage to peak-peak voltage?

Simply multiply the peak voltage to 2 and you will get the peak to peak voltage.